Optimum Reliability in Motion Control Units INDEXING DRIVES

AD Alpha Series Dial Index Description Sankyo's AD/Alpha Series features a low profile design cast iron housing with a ground pilot flange for mounting dial plates, hub less gears, or weldment fixtures. Above the indexing dial, a second dial mounting surface is stationary and hollow to allow air lines, wiring or bearings for a shaft to be routed through the tolerance bore. A globoidal cam rotates Sankyo made needle bearing type cam followers. Optimizing the cam follower diameter inherently maximizes torque transfer and extends the life hours due to fewer rotations with increased surface contact....

AD/Alpha Series Specifications Model Dial Diameter mm (inch) Dial Pilot Bore mm (inch) Hollow Bore Dia. mm (inch) Max. Axial Load N (lb) Max. Radial Load kg (lb) Shaft Center Dist. mm (in) INDEX HOUSING Output Type Indexing Stops Oscillating Motion Angle Index Period Output Bending Moment Input Input Speed Input Bending Moment Index Accuracy Index Accuracy Quick Reference Chart 7AD 9AD 11AD REDUCER / MOTOR Gearmotor (standard) Gearmotor Power Gearmotor Weight C-face Reducer Clutch-brake Wash-down Explosion Proof Motors OPTIONS Output Clutch Torque Limiter Torque Capacity N-m (in-lb) Torque Limiter...

AD/Alpha Series Dial Index Stationary Output Flange Riser Option This option is used if part handlers or measurement equipment are required to be mounted above the rotary indexing dial. The riser is flanged on both ends and offered in multiple lengths with a slightly smaller hollow bore than the index bore. Each riser incorporates a tolerance male centering pilot on the index output flange and for the dial plate or fixture mounting flange. The riser is mounted to the index output flange with (4) bolts and also includes the grease fitting to be extended for easy access. Standard units are painted...

AD/Alpha Series Dial Index Gearmotor Drive Mounting All of our Alpha index units have two gearmotor sizes. On some models, the input shaft diameter also changes with each motor size. The smaller motors are usually within the height of the index and no mounting interference occurs with the bottom of the dial or the housing mounting feet. The output clutch also serves as a spacer to enhance dial clearance. If the TAD output torque limiting clutch is not used, interference may occur with the bottom of the dial in the standard mounting position-1 as shown below. As an option, the gearmotor package...

Dial Index Variable Frequency Drive (VFD) Controller Option Stopping indexing units can be accomplished many different ways. Sankyo chooses the VFD controllers because they are maintenance free and no residual brake dust contamination. Some advantages of using this type of controller are frequent stop/starting cycles, multi patterned speed ramps, electronic braking, varying speed on the fly and motor protection. Preset speeds for jog setup or emergency stop recovery are valuable to minimize damage to the machine tooling and indexing unit. Brake motors can be used in conjunction with the VFD to...

FIXED FLANGE STOP POSITION GREASE FITTING - INDEX REFERENCE (SCRIBED LINE) FIXED FLANGE GREASE FITTING - GEARED MOTOR INDEX REFERENCE (SCRIBED LINE) Specifications of indexing drive Note: Input mass moment of inertia J is calculated in dwell. Unit conversion: (in.-lbs.) = (N-m) X 8.851

Specifications of geared motor Note: Other reducers and gear ratios are available. Mounting interference may occur. Contact Sankyo Sales for specific details. Torque limiter mounting specifications (optional) Figure 7AD-3 Timing cam-Photo switch (optional) Index Dial Example Model Code Indexing Drive Torque Limiter Sensor Model (OMRON) Connector Model Note: Timing cam shown is for a 270° index period and a 90° dwell. Example Model Code Timing Cam-Photo Switch TC - [T] - 7AD •The dimension drawing(Figure 7AD-1, 7AD-2) shows mounting position 1 for the geared motor. •Model 7AD can be equipped with...

FIXED FLANGE STOP POSITION GEARED MOTOR FIXED FLANGE STOP POSITION GEARED MOTOR HANDLE SHAFT Specifications of indexing drive Table 9AD-1 Note: Input mass moment of inertia J is calculated in dwell. Unit conversion: (in.-lbs.) = (N-m) X 8.851

Specifications of geared motor Note: Other reducers and gear ratios are available. Mounting interference may occur. Contact Sankyo Sales for specific details. Torque limiter mounting specifications (optional) Figure 9AD_3 Timing cam-Photo switch (optional) Index Dial Example Model Code Indexing Drive Torque Limiter Sensor Model (OMRON) Connector Model Example Model Code Timing Cam-Photo Switch TC - pT] •The dimension drawing (Figure 9AD-1, 9AD-2) shows mounting position 1 for the geared motor. •Model 9AD can be equipped with 0.2kW or 0.4kW motor. When using the 0.4kW motor, the motor will protrude...

FIXED FLANGE HANDLE SHAFT FIXED FLANGE STOP POSITION GEARED MOTOR HANDLE SHAFT Specifications of indexing drive Table 11AD-1 Note: Input mass moment of inertia J is calculated in dwell. Unit conversion: (in.-lbs.) = (N-m) X 8.851

Specifications of geared motor Note: Other reducers and gear ratios are available. Mounting interference may occur. Contact Sankyo Sales for specific details. Torque limiter mounting specifications (optional) Figure ^ 1AD_3 Timing cam-Photo switch (optional) Index Dial Example Model Code Torque Limiter Sensor Model (OMRON) Connector Model Example Model Code Timing Cam-Photo Switch •The dimension drawing(Figure 11AD-1,11AD-2) shows mounting position 1 for the geared motor. •Model 11 AD can be equipped with 0.4kW or 0.75kW motor. Exchange is not permitted after purchase because of different hollow...

(a) Index With 0.75kW Motor & 5-50:1 Ratio Reducer,60~200:1 Ratios are Noted in Parenthesis (xx) GEARED MOTOR HANDLE SHAFT (b) Index With 1.5kW Motor & 5-80:1 Ratio Reducer FIXED FLANGE STOP POSITION GEARED MOTOR Specifications of indexing drive Table 15AD-1 Note: Input mass moment of inertia J is calculated in dwell. Unit conversion: (in.-lbs.) = (N-m) X 8.851